444012110328421 has 2 divisors, whose sum is σ = 444012110328422. Its totient is φ = 444012110328420.

The previous prime is 444012110328419. The next prime is 444012110328431. The reversal of 444012110328421 is 124823011210444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429661840497796 + 14350269830625 = 20728286^2 + 3788175^2 .

It is a cyclic number.

It is not a de Polignac number, because 444012110328421 - 2¹ = 444012110328419 is a prime.

Together with 444012110328419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444012110328431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222006055164210 + 222006055164211.

It is an arithmetic number, because the mean of its divisors is an integer number (222006055164211).

Almost surely, 2^{444012110328421} is an apocalyptic number.

It is an amenable number.

444012110328421 is a deficient number, since it is larger than the sum of its proper divisors (1).

444012110328421 is an equidigital number, since it uses as much as digits as its factorization.

444012110328421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49152, while the sum is 37.

Adding to 444012110328421 its reverse (124823011210444), we get a palindrome (568835121538865).

The spelling of 444012110328421 in words is "four hundred forty-four trillion, twelve billion, one hundred ten million, three hundred twenty-eight thousand, four hundred twenty-one".